Stigmella obliquella (von Heinemann, 1862)
willow pigmy
Salix spec., Belgium, prov. Hainaut, Evregnies, 1.vii.2018 © Stéphane Claerebout
detail, with exit slit
underside
in backlight

Salix pentandra, Nieuwendam, , 22.vii.2002
Salix eleagnos, Frankrijk, dép. Nord, 14.vi.2020 © Stéphane Claerebout: vacated mine
another specimen
mine
Egg at the upper- or underside of the leaf, usually close to the midrib or leaf margin. The mine is a somewhat widening corridor. Its course is variable, but generally it contains several long, more or less straight, segments. The black frass almost fills the first half of the corridor. Later the frass line becomes relatively narrower, and is more often interrupted. Pupation external, exit slit in the upper epidermis.
host plants
Salicaceae, monophagous
Salix alba, babylonica, x chrysocoma, elaeagnos, euxina, x fragilis, pentandra, purpurea, triandra, viminalis.
In the older literature (Sønderup, 1949a; Hering, 1957a) also Myrica gale is mentioned sometimes, but this probably stems from confusion with St. salicis.
phenology
Larvae in June – July and again September – October (Emmet, 1983a).
BENELUX
BE recorded (Phegea, 2009).
NE recorded (Kuchlein & de Vos, 1999a; Microlepidoptera.nl, 2009).
LUX not recorded (Fauna Europaea, 2009).
distribution within Europe
Europe, except the Balkan Peninsula (Fauna Europaea, 2009).
larva
Yellow (Gustafsson & van Nieukerken, 1990a).
synonyms
Nepticula obliquella; N. wockeella von Heinemann, 1871; M. diversa Glitz, 1892; Stigmella babylonica Hartig, 1949.
notes
In case the egg is on the underside of the leaf, there is a possibility of confusion with St. salicis!
references
Baldizzone (2004a), Beiger (1979a), Bengtsson (2008a), Borkowski (1969a), Buhr (1937a), Buszko & Baraniak (1989a), Černý (2001a), Diškus & Stonis (2012a), Emmet (1971a, 1983a), Gustafsson (1985a), Gustafsson & van Nieukerken (1990a), Haase (1942a), Hartig (1949a), Hering (1957a), Huber (1969a), Johansson ao (1990a), Klimesch (1950c), Kuchlein & Donner (1993a), Kuchlein & de Vos (1999a), Kurz (2016a), A & Z Laštuvka (1997a), Lhomme (1934d), Maček (1999a), Navickaitė, Diškus & Stonis (2014), van Nieukerken (1986a, 2006a), van Nieukerken, A & Z Laštuvka (2004a, 2006a), van Nieukerken, Mutanen & Doorenweerd (2012a), van Nieukerken, Zolotuhin & Mistchenko (2004a), De Prins (1998a), De Prins & Steeman (2011a), Robbins (1991a), Schütze (1931a), Sefrová (2005a), Skala (1939a), Skala & Zavřel (1945a), Sønderup (1949a), Steuer (1995a), Szőcs (1977a, 1978a, 1981a), Vávra (2016a, Yefremova & Kravchenko (2015a), Zoerner (1969a).